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Use MoveWithinRange for attack activities.

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Fixes #2104. Fixes #2923. Fixes #4455.
This commit is contained in:
Paul Chote
2014-01-13 21:12:12 +13:00
parent 64ab0a77a9
commit 58c3f9ad0c
3 changed files with 42 additions and 40 deletions
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46
OpenRA.Mods.RA/Activities/Attack.cs
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@@ -16,25 +16,27 @@ namespace OpenRA.Mods.RA.Activities
/* non-turreted attack */
public class Attack : Activity
{
protected Target Target;
WRange Range;
bool AllowMovement;
int nextPathTime;
const int delayBetweenPathingAttempts = 20;
const int delaySpread = 5;
protected readonly Target Target;
readonly AttackBase attack;
readonly IMove move;
readonly IFacing facing;
readonly WRange minRange;
readonly WRange maxRange;
public Attack(Actor self, Target target, WRange minRange, WRange maxRange, bool allowMovement)
{
Target = target;
Range = maxRange;
AllowMovement = allowMovement;
this.minRange = minRange;
this.maxRange = maxRange;
attack = self.Trait<AttackBase>();
facing = self.Trait<IFacing>();
move = allowMovement ? self.TraitOrDefault<IMove>() : null;
}
public override Activity Tick(Actor self)
{
var attack = self.Trait<AttackBase>();
var ret = InnerTick(self, attack);
attack.IsAttacking = (ret == this);
return ret;
@@ -49,27 +51,23 @@ namespace OpenRA.Mods.RA.Activities
if (!Target.IsValidFor(self) || type == TargetType.FrozenActor)
return NextActivity;
// TODO: This is horrible, and probably wrong. Work out what it is trying to solve, then redo it properly.
if (type == TargetType.Actor && Target.Actor.HasTrait<Mobile>() && !self.Owner.Shroud.IsTargetable(Target.Actor))
// Drop the target if it moves under the shroud / fog.
// HACK: This would otherwise break targeting frozen actors
// The problem is that Shroud.IsTargetable returns false (as it should) for
// frozen actors, but we do want to explicitly target the underlying actor here.
if (type == TargetType.Actor && !Target.Actor.HasTrait<FrozenUnderFog>() && !self.Owner.Shroud.IsTargetable(Target.Actor))
return NextActivity;
if (!Target.IsInRange(self.CenterPosition, Range))
{
if (--nextPathTime > 0)
return this;
nextPathTime = self.World.SharedRandom.Next(delayBetweenPathingAttempts - delaySpread,
delayBetweenPathingAttempts + delaySpread);
return (AllowMovement) ? Util.SequenceActivities(self.Trait<IMove>().MoveWithinRange(Target, Range), this) : NextActivity;
}
// Try to move within range
if (move != null && (!Target.IsInRange(self.CenterPosition, maxRange) || Target.IsInRange(self.CenterPosition, minRange)))
return Util.SequenceActivities(move.MoveWithinRange(Target, minRange, maxRange), this);
var desiredFacing = Util.GetFacing(Target.CenterPosition - self.CenterPosition, 0);
var facing = self.Trait<IFacing>();
if (facing.Facing != desiredFacing)
return Util.SequenceActivities(new Turn(desiredFacing), this);
attack.DoAttack(self, Target);
return this;
}
}